IP Network Resource Manager Feedback for Media Quick Start
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Solution Overview
Problem
Multicast media distribution in IP networks using differential coding causes delays as receivers must wait for a key frame, and initiating Media Quick Start in congested networks can disrupt service for other users due to additional bandwidth requirements.
Innovation Solution
Providing feedback information on resource availability between the sender and receiver to the application framework, allowing Media Quick Start only if resources are sufficient, or selecting alternative start methods that require fewer resources, and temporarily denying Media Quick Start requests to prevent network congestion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If Media Quick Start is initiated to enable immediate media playback, then playback delay is reduced, but network congestion increases due to additional bandwidth requirements
Solution Approach 1:
The system performs preliminary resource availability checking before initiating Media Quick Start. The application framework requests resource availability information from the network resource manager in advance, and only initiates the unicast distribution if sufficient resources are confirmed to be available, thus avoiding network congestion while enabling immediate playback when possible
Solution Approach 2:
The system implements feedback mechanisms where the application framework continuously monitors network resource availability through the network resource manager. Based on this feedback information about current network load and resource status, the system dynamically decides whether to allow Media Quick Start or fall back to traditional multicast-only initiation, thereby adapting to changing network conditions
2Loss of energy
If traditional multicast distribution is used without Media Quick Start, then network resource usage is optimized, but playback delay increases as receivers must wait for key frame
Solution Approach 1:
The system dynamically adjusts the media distribution strategy based on real-time network conditions and receiver state. It can switch between traditional multicast distribution (resource-efficient but delayed) and Media Quick Start with unicast distribution (immediate but resource-intensive), optimizing the balance between resource usage and playback delay according to current network availability and service requirements
Data Source
AI summary
An IP network includes a network resource manager having a resource utilization map adapted to manage network resources in an IP network and an application framework having elements for receiving a request for a multicast distribution from a client in the IP network, and elements for requesting network resources from a network resource manager for a Media Quick Start, to start the requested multicast distribution. Further, the network resource manager includes elements for providing the application framework with feedback information relating to network resource availability from the network resource manager, and the application framework includes elements for receiving the feedback information and elements for allowing the Media Quick start or to use another behavior to start the requested multicast distribution based on the received feedback information.